Study in participants with RA who have an inadequate response to methotrexate.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
252
3 single subcutaneous (SC) injections at day 1 and weeks 1, 2, 4, 6, 8, and 10
3 single SC injections at day 1 and weeks 1, 2, 4, 6, 8, and 10
Two methotrexate dose adjustments were allowed in the event of methotrexate toxicity, however, doses \< 7.5 mg/week necessitated discontinuation from study.
Percentage of Participants With an American College of Rheumatology 50% (ACR50) Response at Week 12
A positive ACR50 response is defined if the following 3 criteria for improvement from baseline were met: * 50% improvement in 68 tender joint count; * 50% improvement in 66 swollen joint count; and * 50% improvement in at least 3 of the 5 following parameters: * Patient's assessment of joint pain (measured on a 100 mm visual analog scale \[VAS\]), * Patient's global assessment of disease activity (measured on a 0-10 Likert scale), * Physician's global assessment of disease activity (measured on a 0-10 Likert scale), * Patient's self assessment of disability (Health Assessment Questionnaire - Disability Index \[HAQ-DI\]), * Acute phase reactant: erythrocyte sedimentation rate (ESR) or C-Reactive Protein (CRP), whichever has bigger improvement.
Time frame: Baseline, week 12
Percentage of Participants With an American College of Rheumatology 20% (ACR20) Response at Week 12
A positive ACR20 response is defined if the following 3 criteria for improvement from baseline were met: * 20% improvement in 68 tender joint count; * 20% improvement in 66 swollen joint count; and * 20% improvement in at least 3 of the 5 following parameters: * Patient's assessment of joint pain (measured on a 100 mm visual analog scale \[VAS\]), * Patient's global assessment of disease activity (measured on a 0-10 Likert scale), * Physician's global assessment of disease activity (measured on a 0-10 Likert scale), * Patient's self assessment of disability (Health Assessment Questionnaire - Disability Index \[HAQ-DI\]), * Acute phase reactant: erythrocyte sedimentation rate (ESR) or C-Reactive Protein (CRP), whichever has bigger improvement.
Time frame: Baseline, Week 12
Percentage of Participants With an American College of Rheumatology 70% (ACR70) Response at Week 12
A positive ACR70 response is defined if the following 3 criteria for improvement from baseline were met: * 70% improvement in 68 tender joint count; * 70% improvement in 66 swollen joint count; and * 70% improvement in at least 3 of the 5 following parameters: * Patient's assessment of joint pain (measured on a 100 mm visual analog scale \[VAS\]), * Patient's global assessment of disease activity (measured on a 0-10 Likert scale), * Physician's global assessment of disease activity (measured on a 0-10 Likert scale), * Patient's self assessment of disability (Health Assessment Questionnaire - Disability Index \[HAQ-DI\]), * Acute phase reactant: erythrocyte sedimentation rate (ESR) or C-Reactive Protein (CRP), whichever has bigger improvement.
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at least 5 mg per week
Time frame: Baseline, week 12
Disease Activity Score 28 (DAS28) at Week 12
The DAS28 is a composite score to measure disease activity in patients with rheumatoid arthritis, derived from the following variables: • The number of tender joints assessed using the 28-jount count and number of swollen joints assessed using the 28-joint count; • Erythrocyte sedimentation rate (ESR); • Patient's global assessment of disease activity (measured on a 0-10 Likert scale). The DAS28 score ranges from 0 to 10, with higher scores indicating more severe disease activity.
Time frame: Week 12
Number of Participants With Treatment Emergent Adverse Events (AEs), Serious Adverse Events (SAEs), and AEs Leading to Discontinuation
AEs are defined as any untoward medical occurrence, that does not necessarily have a causal relationship with this treatment. SAEs are defined as an AE that: is fatal; is life threatening (places the subject at immediate risk of death); requires in-patient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; other significant medical hazard. The severity of events were graded according to the Common Terminology Criteria for Adverse Events (CTCAE) v 4.0: mild=grade 1, moderate=grade 2, severe=grade 3, life-threatening=grade 4, death=grade 5.
Time frame: From first dose of study drug until the end of study; median (min, max) duration was 113 days (8, 132).
Pharmacokinetics (PK) of Brodalumab: Maximum Observed Concentration (Cmax)
Time frame: Week 8: Day 59-Day 61 (44-100 hours post-dose), Day 64 (160-176 hours post-dose), Week 10: pre-dose
PK of Brodalumab: Time to Maximum Observed Concentration (Tmax)
Time frame: Week 8: Day 59-Day 61 (44-100 hours post-dose), Day 64 (160-176 hours post-dose), Week 10: pre-dose
PK of Brodalumab: Area Under the Curve During the Dosing Interval (AUCtau)
Time frame: Week 8: Day 59-Day 61 (44-100 hours post-dose), Day 64 (160-176 hours post-dose), Week 10: pre-dose